U.S. Denies Astra Generic-Drug Delay

By

Sten Stovall

March 9, 2012 6:04 a.m. ET

LONDON—The U.S. Food & Drug Administration has blocked AstraZeneca PLC's attempt to delay the entry of generic versions of the U.K. drug maker's antipsychotic blockbuster Seroquel in the U.S. later this month.

AstraZeneca on Friday said the FDA turned down its Citizen Petition requesting the U.S. regulator withhold final approval of any generic version of the medicine with labeling that didn't have the same warnings that are...